Variant G of the KRTAP20-1 gene improves wool curliness in Chinese Tan sheep.
April 1981 in “Pediatric research” Copper treatments increase copper in all tissues, but brindled female mice accumulate much more copper in their kidneys without clinical effects, unlike brindled male mice where brain copper deficiency is clinically significant.
53 citations
,
October 2003 in “Genetics” The mK6irs1/Krt2-6g gene likely causes wavy hair in mice.
Thermal straightening can damage ethnic hair and may pose health risks.
Curly hair may be caused by a muscle contraction, and muscle relaxants might help treat it.
3 citations
,
July 2021 in “Life science alliance” PNKP is essential for keeping adult mouse progenitor cells healthy and growing normally.
12 citations
,
January 1934 in “Proceedings of the Royal Society of London Series B Containing Papers of a Biological Character” Stretched hair has a similar structure to natural silk, showing hair's elasticity involves reversible changes within its molecules.
15 citations
,
January 2011 in “International journal of trichology” Using a hot iron on wet hair can cause dry, brittle hair with air bubbles inside.
1 citations
,
October 2019 in “Epileptic disorders” A girl with Pitt-Hopkins syndrome developed curly hair as a rare side effect from the epilepsy drug perampanel.
1 citations
,
January 2001 in “PubMed” Mechanoreceptors convert physical touch into electrical signals through specialized nerve structures.
October 2025 in “Journal of Neurophysiology” BK and Kv4.2 channels help Merkel cells in rat whiskers sense touch.
13 citations
,
January 2002 in “Biological chemistry” Different conditions affect how hair proteins assemble, and certain mutations can change their structure.
10 citations
,
November 1984 in “Journal of Colloid and Interface Science” The study found that the Marangoni effect causes the uneven wetting of surfactant-coated hair due to the surfactant moving into the water.
75 citations
,
October 2010 in “Mammalian genome” Sphynx cats are hairless and Devon Rex cats have curly hair due to specific genetic mutations.
18 citations
,
September 1994 in “Clinical and Experimental Dermatology” Localized trichorrhexis nodosa is a hair condition where hair becomes fragile and breaks easily due to damage.
1 citations
,
April 2020 in “Asian Journal of Medicine and Biomedicine” A child's toe was saved from a rare condition where hair tightly wrapped around it by performing surgery.
8 citations
,
September 2020 in “Genes & Genomics” June 2014 in “Professional Beauty” 22 citations
,
August 2015 in “PloS one” Keratin from hair binds well to gold and BMP-2, useful for bone repair.
28 citations
,
January 1985 in “Journal of the American Academy of Dermatology” A girl with citrullinemia developed pili torti, suggesting a link between the hair condition and the metabolic disorder.
13 citations
,
May 2016 in “International journal of biological macromolecules” Keratin's mechanical properties are influenced by hydrogen bonds and secondary structure, and can be improved with the SPD-2 peptide.
9 citations
,
March 2005 in “International Journal of Cosmetic Science” The torsional method effectively evaluates hair damage and the performance of hair care ingredients.
6 citations
,
September 2015 in “Journal of Investigative Dermatology” Using special RNA to target a mutant gene fixed hair problems in mice.
41 citations
,
October 2008 in “The American journal of pathology” Blocking a specific protein signal can make hair grow on mouse nipples.
April 2005 in “The Journal of Urology”
Hair feels different when touched and rubs together in various ways.
October 2015 in “Cosmetic Dermatology” Hair straightening changes hair structure and can cause damage if done wrong, but improvements in the methods are expected to continue.
42 citations
,
January 2017 in “Genes” The gene KAP22-1 affects wool yield and fiber shape in sheep.
5 citations
,
February 1998 in “Polymer” Human hair keratin has a 40% α-helix structure that changes to a random coil in 8 M urea.
1 citations
,
June 2015 in “Journal of anatomy” A compound named ZCZ90 can increase muscle spindle firing, potentially helping treat muscle spasms and hypertension.